Title:
POWDER FOR SOLID OXIDE FUEL CELL AIR ELECTRODE, AND METHOD FOR MANUFACTURING SAID POWDER FOR SOLID OXIDE FUEL CELL AIR ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2020/188842
Kind Code:
A1
Abstract:
A powder of a metal complex oxide having a perovskite-type single phase crystal structure represented by the general formula: A11-xA2xBO3-δ (where element A1 is at least one type selected from the group consisting of La and Sm, element A2 is at least one type selected from the group consisting of Ca, Sr, and Ba, element B is at least one type selected from the group consisting of Mn, Fe, Co, and Ni, 0 < x < 1, and δ is oxygen deficiency), wherein a cross section of a molded body obtained by pressure molding the powder is observed at a magnification of 500 times, and when the intensity of the characteristic X-ray of the element B is measured using the energy dispersion type X-ray analysis method, there is an intensity of 50% or greater than the maximum intensity of the characteristic X-ray, and the number of regions having an area ratio of 0.04% or greater of the observation visual field is 5 or less.
Inventors:
HIRATA NORIMUNE (JP)
HASHIMOTO KAZUTO (JP)
YONEDA MINORU (JP)
HASHIMOTO KAZUTO (JP)
YONEDA MINORU (JP)
Application Number:
PCT/JP2019/028306
Publication Date:
September 24, 2020
Filing Date:
July 18, 2019
Export Citation:
Assignee:
SAKAI CHEMICAL INDUSTRY CO (JP)
International Classes:
C01G45/12; H01M4/86; H01M4/88; H01M8/12
Foreign References:
| JP2018037158A | 2018-03-08 | |||
| JP2018116936A | 2018-07-26 | |||
| JP2015041597A | 2015-03-02 |
Attorney, Agent or Firm:
KAWASAKI, HASHIMOTO AND PARTNERS (JP)
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